This is small module for AS1337. The shematic is simple and provides all required components to operate AS1337. The PCB is 18x15mm miniature module with all pins at one side (S
The efficiency can be above 90% at certain load conditions.
The AS1337 came in two variants: “A” and “B”. The “A” variant disconnects the battery when in power-down mode (disabled) and “B” keeps battery connected in power down mode.
I ordered plenty of PCBs from PCBWAY. They have excellent quality, good prices and they are reasonably fast. Usually, my customs clearance procedure takes longer than production and shipment.
More details will follow after first tests.
Meanwhile, here’s the altium project for this mighty module: AS1337
PCBWAY is the best 🙂
Finished and tested module: